Contains:  Solar system body or event
Transit of Venus 2012-06-05 - Seeking the Black Drop Effect, seigell

Transit of Venus 2012-06-05 - Seeking the Black Drop Effect

Transit of Venus 2012-06-05 - Seeking the Black Drop Effect, seigell

Transit of Venus 2012-06-05 - Seeking the Black Drop Effect

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Description

At 2nd Contact, as the shadow of Venus moves inside the disk of the Sun, there is the Black Drop Effect - caused by sunlight shining thru the admosphere of Venus. This effect frustrated scientific efforts to use the 1761 and 1769 Transits to measure the diameter of the Sun and the distance of Earth to Sun.

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Transit of Venus 2012-06-05 - Seeking the Black Drop Effect, seigell